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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Look for infection - split - and rupture of the penis






2. Implies the amount of estrogen production






3. Prevent the cow from getting an infection from the calve






4. 30 hours after estrus begins






5. (male) pushes the testes outward toward the legs for a cool-down off of the body






6. 147 days






7. What helps regulate spermatogenesis?






8. To remove/separate testicles from animal's body before animal reaches puberty






9. Actual heat cycle (period)






10. Sperm production






11. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






12. Parturition is controlled by...






13. Failure to have both testis (gonads) descend






14. Contains and regulates the temp of the testes for sperm production






15. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market






16. Start of the reproductive tract for the female. located outside of the body






17. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %






18. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.






19. Failure to have one testis (gonad) to descend






20. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






21. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg






22. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total






23. When are steers and heifers weaned from bottle feeding?






24. 1. brain function - 2. blood flow - 3. willing female






25. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






26. (LH) stimulates the Leydig cells to produce testosterone






27. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.






28. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






29. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)






30. 16-20 hours






31. Milk is 15% ________ and 85% __________.






32. Microscopic - make sure not sterile - very few bulls are actually tested






33. Scar tissue plugs up chambers of udder






34. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






35. Milk ~305 days - dry 60 days prior to calving






36. When are dairy cattle dehorned?






37. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






38. (male) pushes the testes upward toward the body for warmth or protection






39. Look for infection - split - and rupture of the penis






40. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






41. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






42. Sperm is produced here






43. Superior genes are _______ to multiply






44. 19-23 (21) days






45. 19-23 (21) days






46. Not under a timeline - cow can not be sold as steak






47. Failure to have one testis (gonad) to descend






48. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






49. 26 hours after estrus begins






50. Luteolysis happens because of the ____________ hormone